[llvm-dev] InstList insert depreciated?

[Shehbaz Jaffer via llvm-dev]

More specifically,

-     FirstI->insertAfter(TaintVar);
+      auto t = dyn_cast<Instruction>(TaintVar);
+       t->insertBefore(&FirstI);

worked for me.

since TaintVar is of type AllocaInst, it does not have an insertAfter
insertBefore defined, so I had to dynamically cast it to Instruction.

Also, making t->insertAfter(&FirstI) causes some errors of type
"llvm-instruction-does-not-dominate-all-uses", since I want alloca to
appear before FirstI, I had to make insertAfter => insertBefore.

On Thu, Aug 25, 2016 at 10:12 AM, Shehbaz Jaffer
<shehbazjaffer007 at gmail.com> wrote:
> Jon,
>
>> You want:
>>    TaintVar->insertAfter(FirstI);
>
> This worked! Thank you.
>
> On Thu, Aug 25, 2016 at 9:38 AM, Jonathan Roelofs
> <jonathan at codesourcery.com> wrote:
>>
>>
>> On 8/25/16 7:01 AM, Shehbaz Jaffer via llvm-dev wrote:
>>>
>>> I tried an alternative way of adding instruction by first getting the
>>> first instruction of the basic block, and then calling insertAfter()
>>> on it as follows:
>>>
>>>   auto &B = F->getEntryBlock();
>>>   auto &IList = B.getInstList();
>>>   auto &FirstI = *IList.begin();
>>>     auto TaintVar = new AllocaInst(IntPtrTy);
>>>     // IList.insert(FirstI, TaintVar);  // OLD
>>>      FirstI.insertAfter(TaintVar); // NEW
>>
>>
>> You want:
>>
>>    TaintVar->insertAfter(FirstI);
>>
>>
>> Jon
>>
>> --
>> Jon Roelofs
>> jonathan at codesourcery.com
>> CodeSourcery / Mentor Embedded
>
>
>
> --
> Shehbaz Jaffer
> First Year Graduate Student
> Sir Edward S Rogers Sr Department of Electrical and Computer Engineering
> University of Toronto



-- 
Shehbaz Jaffer
First Year Graduate Student
Sir Edward S Rogers Sr Department of Electrical and Computer Engineering
University of Toronto